Safety-shuttle-control attachment for textile looms



- J. SHAW ET AL A I SAFETY SHUTTLE CONTROL ATTACHMENT F014 TEXTILE LOOMS Filed Aug. 21 1922 2 Sheets-$heet 1 July 15 1924. 150L572 J. SHAW ET AL SAFETY SHUTTLE CONTROL ATTACHMENT FOR TEXTILE LOOMS Filed Aug- 21. 1922; 2 Sheets-Sheet 2 1a w'uemtoz ultimo isTArs s 1,501,572 arana oirrl-cs.

AMES SHAW 1811 .illTIL i i i H iAR -ES SL 0 r ij i li o i ew SSidiNdiiS or ONE- HIRD- To JER-E nwnn'r z, or PASSAIG, NEW JERSEY.

SAEETYT'SHUTTLE-CQNTRQL ATTACHMENT son anta LObiVISIg Application filed August 21, 1922. Serial masseuse.

To all 'whom z't may concern:

.Be itknown that we, JArrEs SnAw and VILLIAM, HAr':n 1soN', citizens of the Unitedstates, and" residents of the city of Paterson, in the county of Passaicandl State ofNewJerseyrheve inventedcertain new winstful Sa e'tyhuttl i oi r l ch meats or ex i e Looms; of h e iwi lg iawsp qifiqat 'el 111? .i nv t qe ela es ei inr l men e in safety shuttle controlgattachment for textile looms. V or j.

In weaving cloth, the lo'om is provided hfl little 2 9 at. ach. i e from which the shuttles carrying the filler threads travel across the loom, anol through thewarp threads. In the operation of weaving, it be comes necessary from time to time to take out and replace a shuttle and it. is necessary that the shuttle so removedvbe replaced in its proper box, for the reason that if the shuttle is placed in the wrong box and the loom started up the shuttle will be driven into the warp threads, thereby damaging the threads and the fabric. The loss resulting from such an error includes not only the damage to the goods but a considerable loss of time.

The object of our invention is to pro vide means whereby a shuttle will be prevented from being placed in the wrong box. The preferred form of our improved device is illustrated in the accompanying drawings in which- Figure 1 is an end view of a loom provided with our improved device.

Figure 2 is a side view of the same.

Figure 3 is a top view of a shuttle box.

Figure 4 is a side view of the same.

Figure 5 is a section on the line 55 in Figure 4.

Similar reference characters refer to similar parts throughout the several views.

At each side of loom 1, are provided shuttle boxes 2 and 4 respectively. The shuttle travels across the loom to and from these shuttle boxes, the operation of which is understood.

Our invention relates particularly to the construction of the shuttle box and the means for looking or obstructing the same. In the side of the shuttle box 4, is provided a friction plate 5, which is normally pressed into the box 4 by means of a spring 6 and thereby a shuttle 7 entering the box is frictionally engaged and held therein until tact with the friction plate 5 to pressfit int e 1 x14, w .ppsio n w ic trees the shuttle, 7 from enteri'ngthe box; When in its ndrinall vertical position,

in F gure 5 th ingi rm be$ij m15 tactwith the friction plates, which then operates in the usual manner. lVhen,"how'- ever the shuttle 7 leaves its b'ox4 the'arm 8 will as hereinafter explained, swinglover and press against the friction plate .5 de pressing it into. the boxl4 and thereby obstruct the same until, in theusual operation, the shuttle should be received by the box and thus each shuttle box is obstructed at all times except when it should be entered by the shuttle, as herein explained. Below the arm 8, is provided a cam 11, which is adapted to engage the lower end 8 of the arm 8, whereby the upper end of the arm 8 is forced over against the friction plate 5, pressing it into the shuttle box 4. The cam 11 is operated by means of a connecting rod 12, which forms a connection between the cam 11 and a rockinglever 13 pivotally mounted upon the frame 14 of the loom. This rocking lever 13 is provided with an arm 15, which is connected with the treadle 19 which lies in the plane of travel of the picker arm 16 revolving with the driving shaft 17. As the picker arm 16 revolves in its travel, it will engage and actuate the rocking lever 13, thereby forcing the swinging arm 8 against thefriction plate 5 and forcing it into the box 4. We position the arm 15 of the rocking lever 13 so that the box 4 will be obstruc'ted as above described at all times when the shuttle shouldnot be placed there in, and its operation is synchronized with the movement of the shuttle;

Shuttle boxes as above described, are provided at each side of the loom and the devices adapted to close or obstruct the boxes as above described, are connected by means of a connecting rod 18 which causes the re spective devices at each side of the loom to operate alternately as above described.

It will be understood that each of the shuttle boxes on the loom are equipped with a safety device as above described.

Theoperation of the device is as follows: The picker arm 16 in its revolution, having struck the treadle 19, willdrive the shuttle from its'box 4 by means of the arm and as the shuttle leaves the box 4, the arm 15 of the rocking lever will be actuated, and

by means of the connecting rod 12, the upper end 8 of the swinging arm 8 will be pressed against the friction plate 5 whereby the shuttle box t will be obstructed. The connecting rod 18' will simultaneously swing over the rocking lever 21 on the opposite side of the loom, which will draw down the con necting rod 22 and'open the shuttle box 2 to receive the shuttle and this operation will be continued, the shuttle box being obstructed or. closedas the shuttle leaves the box and will so remain until the shuttle should be received and the only box open and unobstructed will be that in which the shuttle should be received It therefore follows that if the operation of the loom is stopped and the shuttle taken out for any purpose, it can be replaced only in its proper box, as the other boxes will be obstructed.

c Having thus described our invention, what weclaimis: 1. In a device of the character described,

a shuttle box, a depressible friction plate therein and means for rigidly holding the friction plate in position to obstruct the shuttle box immediately after the shuttle is expelled therefrom substantially as shown and described.

2. In a device of the character described, the combination of a loom, a shuttle box thereon, a friction plate in the shuttle box, a swinging arm adapted to contact with the friction plate to press the same into the shuttle box when the shuttle leaves the same, a cam adapted to actuate the swinging arm, a picker arm on the loom and adapted to drive the shuttle and to actuate the cam whereby the swinging arm will be pressed againstthe friction plate to close the shuttle box immediately after the shuttle leaves the same substantially as shown and described.

' 3. In a device of the character described, the combination of a loom, a plurality of shuttle boxes thereon, means whereby a shuttle box is obstructed immediately after a shuttle is discharged therefrom and another shuttle box is opened simultaneouly toreceive the shuttle so discharged.

4: The combination of a loom of a plurality of shuttle boxes, means adapted to obstruct a shuttle box immediately after a shuttle is discharged therefrom and to simultaneously open a box to receive a shuttle. Signed this 25th day of July, A. I). 1922.

, JAMES SHAW.

WILLIAM H. HARRISON. 

